About block 901,648
Bitcoin block 901,648 was mined by ULTIMUSPOOL on June 17, 2025 at 4:31 PM UTC, 11 min 30 s after block 901,647. That is slower than the 10-minute target; long gaps are normal, since every hash attempt is an independent draw with the same tiny chance.
It confirmed 4,512 transactions in 1.54 MB (99.8% of the 4 million weight-unit limit). The median transaction paid 4.00 sat/vB, up from 3.00 sat/vB in the block before, and all fees added up to 0.0559 BTC. With the 3.125 BTC subsidy of halving era 5, ULTIMUSPOOL earned 3.1809 BTC for this block.
Block 901,648 is number 497 of 2,016 in difficulty epoch 447; 1,519 blocks remain until the next difficulty adjustment at block 903,167. The next halving is at block 1,050,000, 148,352 blocks after this one.
Its hash starts with 19 zeros: that is the proof of work, a number below the target that the whole network’s hashrate had to search for. ULTIMUSPOOL found 0 blocks in the week before. Today the block has 74,073 confirmations, so it is settled beyond any practical doubt.